Description
P320 X-Series Small Grip Module Design
This Sig P320 X-Series full-size grip module delivers the refined ergonomics that make the X-Series platform stand out. The small grip size suits shooters who prefer a reduced circumference while maintaining the sight radius and capacity of a full-size pistol. Swap your existing fire control unit into this module to instantly transform your P320's feel and handling characteristics.
What Sets the X-Series Apart
Compared to standard P320 grips, the X-Series modules are noticeably thinner and more angular. You get an extended beavertail and a higher undercut beneath the trigger guard that lets you run your hand up higher on the frame. The laser-etched grip texture covers more of the surface and delivers noticeably better purchase in wet or gloved conditions. These refinements combine to give you more control and a faster sight picture without adding bulk.
Compatibility and Setup
This module accepts your existing P320 fire control unit and works with 9mm, 40 S&W, and 357 SIG ammunition when paired with the appropriate slide and barrel. The coyote polymer construction is lightweight and durable. Keep in mind this version does not come with the extended magwell or internal weight, though the frame is drilled and compatible if you want to add them separately. Magazine compatibility requires the SIG Mark baseplate, not the older SIG SAUER stamped versions.
Proven Real-World Performance
Users consistently report that switching to the X-Series module improves their shooting experience. The ergonomic improvements and better grip access translate into tighter groups and faster follow-up shots. The coyote finish pairs well with modern tactical setups while remaining subdued for carry purposes.
Key Specifications
- Manufacturer: Sig Sauer
- Manufacturer Part Number: GRIPMODXF943SMCOY
- UPC: 798681617128
- Model: P320
- Grip Size: Small
- Fits Barrel Length: 4.70 inches (Full Size)
- Compatible Calibers: 9mm Luger, 40 S&W, 357 SIG
- Frame Material: Coyote Polymer
- Color: Coyote
- Features: Extended beavertail, high undercut trigger guard, laser-etched stippling, flared magwell compatible
- Magwell and Weight Compatible: Yes (accessories sold separately)
- Includes Extended Magwell: No
- Includes Internal Weight: No
What’s Included
- Sig Sauer P320 X-Series grip module assembly
Frequently Asked Questions
Will this grip module work with my existing P320 fire control unit?
Yes. The P320 fire control unit fits all factory Sig Sauer grip modules. You simply remove your FCU from your current grip module and install it into this X-Series module. No tools are needed for the swap.
What magazines work with the P320 X-Series grip module?
This module is compatible with P320 magazines that have the SIG Mark on the baseplate. It will not work with older magazines stamped "SIG SAUER" on the baseplate. Make sure to verify your magazine baseplates before installing this grip.
How is the small X-Series grip different from standard P320 grips?
The X-Series module is noticeably thinner overall with flatter sides. It has an extended beavertail and a higher trigger guard undercut that lets you grip higher on the frame, improving control. The laser-etched stippling is more aggressive and covers more area than standard modules.
Can I add the extended magwell and weight to this grip module?
The frame is drilled and tapped to accept Sig X-Series magwells and grip weights, but this module is sold without them. Those accessories are available separately if you want to add them for additional control and balance.




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